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Humans

  1. Health & Medicine

    Antioxidants + heart drugs = bad medicine?

    Taking dietary antioxidant supplements along with certain cholesterol-regulating drugs may diminish the effectiveness of those drugs in boosting the so-called good cholesterol.

    By Janet Raloff
  2. Health & Medicine

    Insect-saliva vaccine thwarts parasite

    Mice inoculated with a component of sand fly saliva develop immunity to Leishmania, a protozoan that infects hundreds of thousands of people in the tropics each year.

    By Charlotte Schubert
  3. Health & Medicine

    Chemotherapy leads to bone loss

    In women with early-stage breast cancer, malfunctioning ovaries and significant bone loss can occur within 6 months of chemotherapy treatment.

    By Damaris Christensen
  4. Health & Medicine

    Inflammation linked to diabetes

    Women who go on to develop diabetes seem to have signs of widespread, low-level inflammation years before they have symptoms of the disease.

    By Damaris Christensen
  5. Health & Medicine

    Ancient Estrogen

    A jawless fish ancestor may have revealed the most ancient of hormones and how current hormones evolved from it.

    By Jessa Netting
  6. Health & Medicine

    Drink Those Antioxidants

    By Janet Raloff
  7. Health & Medicine

    Surgery for epilepsy outshines medication

    People with severe epilepsy who undergo brain surgery have markedly fewer disabling seizures during the following year than do those relying on medication.

    By Nathan Seppa
  8. Health & Medicine

    Busting the Gut Busters

    Scientists are uncovering a cache of specialized weaponry used by bacteria that can spear holes in the intestine, perforate it, force it to change shape, and then spew toxins that attack other organs.

    By Charlotte Schubert
  9. Health & Medicine

    Synthetic protein may yield malaria vaccine

    A molecule patterned after part of the parasite that causes most severe malaria induces a strong immune response in people.

    By Nathan Seppa
  10. Health & Medicine

    Fighting Herself

    Autoimmune diseases are more common in women than in men, and researchers are beginning to tease out the cellular mechanisms that may be responsible for this phenomenon.

    By Damaris Christensen
  11. Health & Medicine

    Herpes virus homes in on cancer target

    Herpes simplex virus 1 has an affinity for cells with a mutation that marks many tumors, indicating how the virus may be refined as a cancer therapy and that certain new drugs might attack herpes itself.

    By Charlotte Schubert
  12. Health & Medicine

    Ebola May Enter Cell via Folate Gate

    A cell-surface molecule that normally binds to folate might be targeted by Ebola and Marburg viruses as their entry point to people's cells.

    By Nathan Seppa